_NSParseWithFormat.m

#include <stdio.h>
#import <AppKit/AppKit.h>

APPKIT_EXTERN size_t _NSParseWithFormat(NSString *, NSString *, ...);

int call_vsscanf_l(const char *tokenstring, const char *format, ...) {
    int result;
    va_list arglist;
    va_start(arglist, format);
    result = vsscanf_l(tokenstring, 0, format, arglist);
    va_end(arglist);
    return result;
}

int main(int argc, const char * argv[]) {
    @autoreleasepool {
        float v_1;
        float v_2;
        float v_3;
        float v_4;
        int n_1;
        float v_5;
        float v_6;
        float v_7;
        float v_8;
        int n_2;
        
        size_t s_1 = call_vsscanf_l("-643 162 400 828 -2304 0 2304 1271 ", "%f %f %f %f %n%f %f %f %f %n", &v_1, &v_2, &v_3, &v_4, &n_1, &v_5, &v_6, &v_7, &v_8, &n_2);
        assert(s_1 == 8);
        assert(n_1 == 17);
        assert(n_2 == 35);
        assert(v_1 == -643.0f);
        assert(v_2 == 162.0f);
        assert(v_3 == 400.0f);
        assert(v_4 == 828.0f);
        assert(v_5 == -2304.0f);
        assert(v_6 == 0.0f);
        assert(v_7 == 2304.0f);
        assert(v_8 == 1271.0f);
        
        size_t s_2 = _NSParseWithFormat(@"-643 162 400 828 -2304 0 2304 1271 ", @"%f %f %f %f %n%f %f %f %f %n", &v_1, &v_2, &v_3, &v_4, &n_1, &v_5, &v_6, &v_7, &v_8, &n_2);
        assert(s_2 == 8);
        assert(n_1 == 17);
        assert(n_2 == 35);
        assert(v_1 == -643.0f);
        assert(v_2 == 162.0f);
        assert(v_3 == 400.0f);
        assert(v_4 == 828.0f);
        assert(v_5 == -2304.0f);
        assert(v_6 == 0.0f);
        assert(v_7 == 2304.0f);
        assert(v_8 == 1271.0f);
    }
    
    return 0;
}